SO2-4/Fe2O3固体超强酸的制备及光催化降解甲基橙的研究

摘要

The SO 4 /Fe2O3 solid superacid catalyst was prepared by chemical precipitating and soaking method, and the effect of photocatalytic degradation to methyl orange was studied with the single-factor experiment method. The results showed that when the catalyst quantity is 2g·L-1, Ph value is 6, the first concentration of methyl orange is 10mg·L-1 and reactive time is 90min, the degradation ratio of methyl orange is over 90%.%采用沉淀-浸渍法制备SO2-4/Fe2O3固体超强酸催化剂.通过单因素实验考察了SO2-4/Fe2O3光降解甲基橙的效果.结果表明,固体超强酸SO2-4/Fe2O3光催化降解甲基橙的最优反应条件是:溶液pH值为6,催化用量2g·L-1,甲基橙溶液初始浓度10mg·L-1,反应时间90min.在最优反应条件下,甲基橙的降解率可达90％以上.